My 125mm lev dx (external actuator at seat clamp level) is sagging and I want to try pumping it up.
However the Schrader valve at the top is in a very tight hole and I cannot seem to screw any of my shock pumps in there. Is there an adaptor out there?

It looks like this.

and I would find it much easier to get the pump in if it looked like this

Nobody?

Some Marz and rockshox forks used an adapter which threaded into the internal threads of a Schrader valve, the the threads the core screws into. That should do the job.

Push the outer part with the bolt holes down the post, they just get a bit wedged on with mud. Then you should find the black curved piece just lifts off and gives you access to the valve.

Bloody predictive text, but you get the idea.